再次启动ios推送设备

我需要把设备关掉。 当我向我的应用程序添加推送通知时，我通过

didRegisterForRemotonificationswithDeviceToken

但现在我需要再次得到它，我没有保存它。

didRegisterForRemoteNotificationsWithDeviceToken

只调用一次，其他时间应用程序只运行

registerUserNotificationSettings

---

我曾想过将所有新用户的令牌保存到

[NSUserDefaults standardUserDefaults]

，但它只适用于新用户。如何处理当前用户？

在“didFinishLaunchingWithOptions”方法中添加以下代码

if ([application respondsToSelector:@selector(registerUserNotificationSettings:)])
{
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
} 
else
{
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
}

然后，在应用程序启动期间，每次调用“didFinishLaunchingWithOptions”时，都会调用“DidRegisterForRemotionTificationsWithDeviceToken”方法